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https://doi.org/10.31803/tg-20200515225239

Accuracy Analysis of Point Velocities Determined by Different Software Packages and GNSS Measurement Processing Methods

Margareta Premužić*   ORCID icon orcid.org/0000-0001-9174-2445 ; State Geodetic Administration, Zagreb Gruška 20, 10000 Zagreb, Croatia
Almin Đapo ; University of Zagreb, Faculty of Geodesy, Kačićeva 26, 10000 Zagreb, Croatia
Željko Bačić   ORCID icon orcid.org/0000-0001-6076-8896 ; University of Zagreb, Faculty of Geodesy, Kačićeva 26, 10000 Zagreb, Croatia
Boško Pribičević ; University of Zagreb, Faculty of Geodesy, Kačićeva 26, 10000 Zagreb, Croatia

Puni tekst: engleski, pdf (1 MB) str. 446-457 preuzimanja: 256* citiraj
APA 6th Edition
Premužić*, M., Đapo, A., Bačić, Ž. i Pribičević, B. (2020). Accuracy Analysis of Point Velocities Determined by Different Software Packages and GNSS Measurement Processing Methods. Tehnički glasnik, 14 (4), 446-457. https://doi.org/10.31803/tg-20200515225239
MLA 8th Edition
Premužić*, Margareta, et al. "Accuracy Analysis of Point Velocities Determined by Different Software Packages and GNSS Measurement Processing Methods." Tehnički glasnik, vol. 14, br. 4, 2020, str. 446-457. https://doi.org/10.31803/tg-20200515225239. Citirano 27.11.2021.
Chicago 17th Edition
Premužić*, Margareta, Almin Đapo, Željko Bačić i Boško Pribičević. "Accuracy Analysis of Point Velocities Determined by Different Software Packages and GNSS Measurement Processing Methods." Tehnički glasnik 14, br. 4 (2020): 446-457. https://doi.org/10.31803/tg-20200515225239
Harvard
Premužić*, M., et al. (2020). 'Accuracy Analysis of Point Velocities Determined by Different Software Packages and GNSS Measurement Processing Methods', Tehnički glasnik, 14(4), str. 446-457. https://doi.org/10.31803/tg-20200515225239
Vancouver
Premužić* M, Đapo A, Bačić Ž, Pribičević B. Accuracy Analysis of Point Velocities Determined by Different Software Packages and GNSS Measurement Processing Methods. Tehnički glasnik [Internet]. 2020 [pristupljeno 27.11.2021.];14(4):446-457. https://doi.org/10.31803/tg-20200515225239
IEEE
M. Premužić*, A. Đapo, Ž. Bačić i B. Pribičević, "Accuracy Analysis of Point Velocities Determined by Different Software Packages and GNSS Measurement Processing Methods", Tehnički glasnik, vol.14, br. 4, str. 446-457, 2020. [Online]. https://doi.org/10.31803/tg-20200515225239

Sažetak
The paper analyzes the geodynamic network of the City of Zagreb for periodic campaigns carried out from 2006 to 2009 which were processed by different software packages. The first computations and processing results were obtained by using the scientific software Gamit/Globk and indicate the ongoing tectonic activity of the area. In this paper, all calculations were performed by using the scientific software Bernese. Processing strategies and applied error models in the Gamit and Bernese solution are analyzed. The results of the previous analyses show the need to perform GNSS measurements at intervals of up to one year, which is necessary for understanding the mechanism of the structural frame of the wider Zagreb area. The research and analysis performed in this paper indicate certain uncertainties in determining the velocities from periodic one-year GNSS measurements. When periodic GNSS observations are analyzed at time intervals shorter than 2.5 years, annual signals can cause significant errors in determining point velocities. The accuracy of determining velocities between annual time intervals depends on a number of factors: noise level in GNSS measurements, measurement sessions quantity and applied computation strategies. Previously, the time series analysis of observations was a key procedure in the context of geodynamic and geokinematic research and the FODITS algorithm was used for the analysis. A noise analysis on the daily time series of coordinates was performed for the purpose of understanding all influences on geodynamic points. Moreover, a correlation between the time series of observations was determined in order to estimate the final velocity uncertainty error. The purpose of this paper is to demonstrate the applicability of the methods and procedures used to determine the coordinates and velocities of points that can be reliably used for geodynamic and geokinematic analyses and consequently, timely responses to various geophysical phenomena due to earthquakes or other natural phenomena.

Ključne riječi
Bernese; CROPOS; FODITS; Gamit; Geodynamic Network of the City of Zagreb

Hrčak ID: 247410

URI
https://hrcak.srce.hr/247410

Posjeta: 460 *